Steam engine



C. SPIRO STEAM ENGINE oct. 21, 1930.

Filed Noy. 1, 192e Il, Illini '6 as to develop the'powersdesir'ed.

Patentes oa; 21', 1930 #Aipplieatiohled *November This invention relates to a steam engine and particularly td av v construction 4wherein the propelling vapor is generated-directly Within a heated Loylind'er'- and to Vsuchl extent Inthis type fof engine a material in practical operation has. arisen by the'in troduction of alarge 4body of liquidat a low, temperature which required suehf a5 periodl. .heated cylinder?,that',y the movement ofl theengine piston was re? l duced in speed to la pointwliere eifective re-r to vaporizevvithin the sults could not be secured; Further'the'-heat lost and. accomplished 'no' further Work;

Toover'com'e such objections I have pro-fy vided means `byjwhichv the'lliquid may be successively fedA in small quantities 'and ,ata n the cylinder ateach stroke of ythel pistonvvere high temperature so that; its vapori'zation is effected substantially immediately upon en tering the heated y'cylinder andthe pressure Y built up toYK effect the desiredspeedand povver in- 'operationf This results vin a 'newv :method of operation by ivvhichthe liquiduis rstfva? porized to actuate thejpiston, thenfcondensed after being'exhausted fromthe, cylinder, andV subsequentlythe condensate is refed'ftdthef vcylinder for revaporizatiolfi Such method @conserves manyof the heat' units originally Y* transmitted to the liquidin thefvapoiization step and assistsV in 'maintaining the temperavaprization A A further Objeci of-th ;i11venti011 is to., i present, aneyv construction' "offengine, inclnd-E' ing a; heated/ cylinder Aand @pistoniL fthereingvr with alternately actuated means forfeeding liquid at each end f@theQcylniler*and*eX- theret ture ofthe cylinder by'feeding a heated liquid Iitrl Has for h Obitftofperiie d improved Iethod 0f, Operating condensing'fsuch vapor; andfre'feeding the heated condensate ein @linde fof farther 'hausting vapor, therefrom5`and means "for ffthe .cylinderiand 'pistnA type" consisting' `1 in alternately introducing into i th e opposite ends OfenL'lleaitdj Cylinder a 1, 1926;'. seriali No. 14s-,516.

` condensating yexhaust,edi vapor land fre`4 vide an Vimproved feedingy means for a vapor generating cylinder in- Whichfthe'piston; has Vits]rodeXtended in opposite.directionsand y provided with means for successively feeding'v limited. quantities of liquid tothe cylinder', 'Ihei'inventin also haslfor an object 2to present a novel structurein Whichth'e cylinder is `enclosed Within a heating chamberandformed' With" heads having t exhaust ,valves 'Connected rfOr,int,ermittrit opening @dicksf ing' movement'- Controlled by the Opposite movements of therod Afrom the piston Within 65 the cylinder,together vvith'liquid intakeportsf i'n the heads automaticallycontrolled bysuoh movements fV the rod to alternately feed at oppositesidesiof thepist'om` v v Other and further Objectsand 'adva'ntages `10'4 of theinvention Will be heeinafterset forth: and the novel features thereof den'edff by f @1F lgure 1' isV a vertical'glongitndinal fth'f'riventoni Q'Figure y2"-is aV de tai section'atfonefend-of the cylinder', 'and 'i if "I ,Figure f3 isa'fragrnentary'jdetai Wi h, pistonv 'rod' broken" away 't0, SlifQWfv the v" Opgratin,g3.-.CQUQQCOUy 1L', .715

Like'numerals ,refer e :like ,parte in the; severalfiguresof the 'dra'vvings: The invention is vadapted' 1forl'variousap-V plications land-'While "described vas a steam en-v gnfoiher liqid andusedffger itsfprop' l ment of ftheinventionh e1 site ends each'having an intakelffor liquid i and al1/exhaust13 foffsteainit'lheiexhanst ports' arecontiolled -byf suitable valves, such for instanc'ezaslthe cocks`l4 havingacut-away passage therethrough', and eaohyvalve carries an'operating-.lever 15. Thefoppositejlevers are Conneeedffor joimropebn byfaglink i' Y matic shifting thereof. y Y v For the purpose of feeding afliquidiintogzi in opposite directions and is suitably packed Where passing through the heads 11. One end of the rod 18 is Connected to a sliding 'cross head 19 from Which a pitman 20eX- Y 5` tends to the crank shaft cfa fly-Wheel 21 to Y A provide momentum to carry the piston over the points of no power at the ends of the strokes: 'Therod-is also provided With laterally projected pushers 22 vvhichat the oppo-V i from the exhaust valves to eiieetganfagutg;

the heated cylinder to loe vaporized thereby,

for va'nheimii heating fof tliefentire surface fo the cylinder so krthat? its full area is eect'vfeVV in vaporizingthe liquidintro;duced. y *Inc* carrying youtthefmethod of l operation sible `te'niperaltureto flozvv'in ofthe heated to the point of vapoi atioinj this purpose an elevated closed; "feedf 'is' provided and'fcommuniatesby [pi with the .intakes lvhchetj Prpfi Y register' withithe' Vpiston Aforigrew'esi `the exhaust ,ports 13 pipes '2.8 extend izciffa Peint abovieftle 'vvterg levellinf the 't-nkjso Vthat the"'exhaust steam e itt dftherefroiii theft 'iik liquidpfeediatfhe semesters,byftheti y, die fly Wheel the grgvesjgspqes site extremes lof travelV engage the levers 15` different devices may?be-tmplyedgy biitl--ae ventsf toiperinitpansionjf thefheated 'V air Withinithedrumj This'provides""meansl presentl in this j invention .1 it is important tok -i site I @as;exfndingyfhrouehithe 11 Heanllpol `forfeoii'fring lquidas their-passage saisiQhamberenddelivernstntothe y derlsucessvely"sUfOPPQS" vto meanesteacirineadifferfalternately Y huStrrsithfor bodily Y nicate with the cylinder and the small quantity of liquid carried by each groove is im-v mediately vaporized by the heated cylinder. These grooves are so disposed relative to the e piston thatthe liquid feed to the cylinder begins promptly upon the-reversal of the directlonwof vpiston stropke. pressure lin the cylindenisgigradually louiltupa'sthe succes-V sive `"grooves" discharge the cooling ef- I 'ectf'ofmintroducing'a larger body `oi Water andbits'rodtravel `tothe right the valves are automatically shifted as the piston reaches intothegcylindersis`obviated. As the piston A thelimit of its travel Which also controls, V

to the cylinder uponv reversal inthe direction ,maribel-degree i-Q'ffhat necessary/fer vapor" ifzationatthe cylinder at a high temperature is reduced andjthe most eiiicli'ent :operation is Sfuld :While the ispee'ifio constru'ction of Vnthe er1- gne 1has"beensluis/1 1 and described, the inveii'f tioii'is net convinedtheret@fas changes and l l v, @Bilder herbal-drie. site hea'dsfprovidedfvvith liqui d` hambe'rsg fa alterations-mayjbefmade,vvithoutjdeparting v umfthesfplt ofthe'ginventionqas recitedin"V v pYiStQswithin-ufe cyunpderformea with oppor siter Vds extejdingfthroughthe liquid fchambers means'ffrlbo remediar.,

@dem

al rod extending thy"rough2 saidlieadsiieaiis eating saidgcylindzer lmeans con-v for i` eX www with the liquid introduction, v'alidanintake for the heated liquid at the lower portion ilo lof said tank discharging by gravity tothe opposite heads of the heated cylinder.

4. In an engine, a bodily heated cylinder having opposite heads each provided With separate liquid vintake and vapor-exhaust ports, Valves` jointly controlling the'exhaust' ports, a piston within the cylinder, and opposite extending rods from said pistonA provided With charge conducting pockets disposed adjacent the opposite faces of the piston toV v alternately feed liquid from the intake to the interior of the cylinder and a solid periphery d to close said inlet. Y, Y t

l5. In an engine,a cylinder having opposite heads provided with liquid chambers,

exterior means vfor heating the wall of said Y cylinder, a piston'op'erating Within the heated area of the cylinder, opposite rods `fromsaid piston formed Withgrooves disposed to enter one of said chambers at the end of each stroke and a solid periphery to close the outlet from the chamber, andvexhaust valves at thecylinder heads ycontrolledby the piston travel to exhaust at alternate sides thereof. Y v

In testimony whereof I aiiix my signature.

' CHARLES SPIRO. 

